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I have imported a .gpx file into qgis and separated the track waypoints using Vector > GPS > GPS tools. When viewing at full extent I can see the original track and component waypoints. However when I zoom in, the track lines disappear but the waypoints are still there. I have tried:

  • checking track layer scale dependent rendering is OFF
  • exporting track layer as .shp and adding to map
  • moving track layer to top of layer stack
  • toggling map rendering

but still cannot view track when zooming in. Any ideas?
Thanks,

Tony

[EDIT] I have uploaded Pic1 which shows zoomed to the layer extent ('GPX tracklog export'). Pic2 is when it has zoomed in with mouse wheel and part of the shapefile has diappeared. Note these are the gpx file tracklog exported as a shapefile.

Pic1 - at image extent

Pic2 - zoom in

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For a shapefile, sometimes the .sbn and .sbx files cause this behavior (which you may delete). –  artwork21 Dec 4 '13 at 13:49
    
I experience the same problem with a vector shapefile sent to me from the British Oceanography Data Centre (so I assume it shouldn't have too many faults? Not necessarily true). Looks fine when zoomed to layer full extent, disappears completely when I zoom in. I'll raise this as a bug @ hub.qgis.org. Please comment if you've had the same experience. –  dez93_2000 Jan 22 at 16:54
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1 Answer 1

Does it help to insert points into the way geometry?

Sometimes ways don't get rendered if all points of the way are outside the current window.

[EDIT 2] from user19425 I can't seem to add a separate comment, possibly because this is a closed question. But anyway thanks Joost, that worked. Are you aware if this is a tracked bug?

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